# Mail uses default sender address when reply-to field is left blank

**URL:** https://forum.mautic.org/t/mail-uses-default-sender-address-when-reply-to-field-is-left-blank/33135
**Category:** Product Support
**Created:** [August 14, 2024, 2:52pm UTC](https://forum.mautic.org/t/mail-uses-default-sender-address-when-reply-to-field-is-left-blank/33135 "2024-08-14T14:52:22Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![larsmattia](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/larsmattia/32/13016_2.png) [@larsmattia](https://forum.mautic.org/u/larsmattia)
#### Post date: [August 14, 2024, 2:52pm UTC](https://forum.mautic.org/t/mail-uses-default-sender-address-when-reply-to-field-is-left-blank/33135/1 "2024-08-14T14:52:22Z")

</div>

**Your software**  
My Mautic version is: 5.1.0  
My PHP version is: 8.1.29  
My Database type and version is: MariaDB 10

**Your problem**

Github Issue: [Custom e-mail reply-to address uses default sender address when field is left blank #14040](https://github.com/mautic/mautic/issues/14040)

When I send a Quick email or a Campaign email, and I do not set the “Reply to address”, it will use the system’s default mail address.

This is sample email:

 ![reply-to-test-email](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/5/554a04f4fa9ededc9291865d4b08ef2be781afd1.png)

The reply to address tooltip says: _leave blank to use from address_

When I use this in a simple campaign like this:

![reply-to-campaign](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/6/6bee9da4a0786ff0bce09e317164fba649375dec.png)

When I receive this mail in Thunderbird the reply-to adress is the system’s default mail address:

 ![reply-to-thunderbird-email](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/1/1b8ae20281736052c03681700da024d473f986b1.png)

(“Antwort an” == “Reply to”)

These errors are showing in the log: none

Steps I have tried to fix the problem: -